Can't make promise return value

promiseReturnsValue.js

// need to execute a chain of promises (using then())
// and make/call a function that will return a value (not a promise object)

p = (fn) => {
    return new Promise((resolve, reject) => {
        setTimeout( () => {
            resolve(fn.call());
        }, 1000);
    });
};

log = () => {
    console.log('step');
    return 1;
}

prom = null;

prom = p(log).then((res) => {
    return p(log);
}).then((res) => {
    return p(log);
}).then((res) => {
    return 1;
});

async function aspr() { 
  r = await prom.then((v) => { 
    window.result = v; 
  });
	console.log(window.result);
  return window.result;
}

aspr();

p = (fn) => {
  return new Promise((resolve, reject) => {
    setTimeout( () => {
      resolve(fn.call());
    }, 1000);
  });
};

log = () => {
  console.log('step');
  return 1;
}

x = async () => { 
  await p(log).then((res) => {
    window.result = res;
  });
}

x();
window.result;